When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around ...

According to its IndieGogo campaign page, the Photonmatrix can seek and destroy up to 30 mosquitoes per second. The ...

0 0 This article was originally published with the title “Tangent Galvanometer” in SA Supplements Vol. 61 No. 1584supp (May 1906), p. 25385 doi:10.1038/scientificamerican05121906-25385bsupp ...

J.J. Nervander designed the more- sensitive tangent galvanometer in 1834, which led to a great improvement in precise measurements of electric current. Because of its ingenuous coiling arrangements, ...

The film explores the concept of electricity, demonstrating how it can be generated through simple experiments such as rubbing different materials together. It explains the basics of electric ...

A galvanometer is converted into a voltmeter by connecting a high resistance in series with it. Give an example of a substance whose resistance decreases as temperature increases.

0 0 This article was originally published with the title “Tangent Galvanometer” in Scientific American Magazine Vol. 61 No. 12 (September 1889), p. 181 doi:10.1038/scientificamerican09211889-181a ...

Noninvasion, low-power consumption, and wide-range measurement of sensor nodes in wireless sensor networks remain a large challenge for smart grid and Internet of things (IoT). A noninvasive passive ...